entity framework 查看自动生成的sql

         public MesDbContext() : base("name=mysql")
         {
             Database.Log = new Action<string>(msg => Debug.WriteLine(msg));
         }

     [DbConfigurationType(typeof(MySqlEFConfiguration))]
     public class MesDbContext: DbContext
     {
         static MesDbContext()
         {
             Database.SetInitializer(new MigrateDatabaseToLatestVersion<MesDbContext, MigrateConfig>());
         }

         public MesDbContext() : base("name=mysql")
         {
             Database.Log = new Action<string>(msg => Debug.WriteLine(msg));
         }

         public DbSet<User> Users { get; set; }
         public DbSet<Mat> Mats { get; set; }
         public DbSet<Bom> Boms { get; set; }

     }

     public class MigrateConfig : DbMigrationsConfiguration<MesDbContext>
     {
         public MigrateConfig()
         {
             AutomaticMigrationsEnabled = true;
             AutomaticMigrationDataLossAllowed = true;
         }
     }